bumblebee | d70e30304c53b7b9f9f5d4409f0ac9b6713709d45fdc1f1bf65fe9f1ad539d1d

Analysis

max time kernel
41s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-08-2022 22:43

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General

Target

JsUDviXDiDBFhx.dll
Size

1.8MB
MD5

bce81d0fe5a5f2ec833b1890fa8a1cc5
SHA1

6c1e9bea7c9e7057ef40946abb97a3e60026a61c
SHA256

d70e30304c53b7b9f9f5d4409f0ac9b6713709d45fdc1f1bf65fe9f1ad539d1d
SHA512

de6ca51763ae07548208da7931f992d26ab357141d6a1b1d54f54f66f83a7317756f6a6ae8c0a47e9d379c15eb4eecf8596c12c70cd9e8c7f888b0d16d1a46c0
SSDEEP

24576:0N874KCVg2wUnXrUupzjXxbXQvHYOsmzOTp+U7pXXUL7SmI5y0fvFj1kqRIN3Qtt:0N87jcHwgXr5tToHYOsmSTx7pXkOy

Score

10^/10

bumblebee 2608 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

2608

106.105.40.37:281

224.63.194.81:125

122.61.32.33:499

195.167.135.231:104

253.87.116.144:132

115.118.214.197:398

208.46.210.160:259

151.45.81.241:319

231.115.169.144:479

211.3.163.223:438

205.185.116.99:443

72.129.220.46:326

58.237.169.212:157

116.14.243.168:325

172.115.124.76:463

197.182.124.10:479

59.253.233.208:344

37.224.208.59:206

186.92.108.120:154

198.98.52.246:443

rc4.plain

Signatures

BumbleBee
BumbleBee is a webshell malware written in C++.
trojan bumblebee

Enumerates VirtualBox registry keys 2 TTPs 5 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	regsvr32.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	regsvr32.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	regsvr32.exe

Checks BIOS information in registry 2 TTPs 3 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	regsvr32.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2012	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe
2012	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\JsUDviXDiDBFhx.dll
1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2012-54-0x000007FEFBE11000-0x000007FEFBE13000-memory.dmp

Filesize
8KB

Download
memory/2012-55-0x0000000002480000-0x0000000002596000-memory.dmp

Filesize
1.1MB

Download
memory/2012-57-0x0000000002480000-0x0000000002596000-memory.dmp

Filesize
1.1MB

Download